80639992301819 has 2 divisors, whose sum is σ = 80639992301820. Its totient is φ = 80639992301818.

The previous prime is 80639992301797. The next prime is 80639992301863. The reversal of 80639992301819 is 91810329993608.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-80639992301819 is a prime.

It is a super-2 number, since 2×80639992301819² (a number of 29 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (80639992301879) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40319996150909 + 40319996150910.

It is an arithmetic number, because the mean of its divisors is an integer number (40319996150910).

Almost surely, 2^{80639992301819} is an apocalyptic number.

80639992301819 is a deficient number, since it is larger than the sum of its proper divisors (1).

80639992301819 is an equidigital number, since it uses as much as digits as its factorization.

80639992301819 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 45349632, while the sum is 68.

The spelling of 80639992301819 in words is "eighty trillion, six hundred thirty-nine billion, nine hundred ninety-two million, three hundred one thousand, eight hundred nineteen".